The King Iron Bridge & Manufacturing Company was a late-19th-century bridge building company located in Cleveland, Ohio. It was founded by Zenas King (1818–1892) in 1858 and subsequently managed by his sons, James A. King and Harry W. King and then his grandson, Norman C. King, until the mid-1920s. Many of the bridges built by the company were used during America's expansion west in the late 19th century and early 20th century, and some of these bridges are still standing today.
The Calamus Creek Bridge near Maxwell, Iowa is a concrete Luten arch bridge constructed in 1905. It was built by N. M. Stark and Company for a cost of $900. It has a 25-foot (7.6 m) single span and a total length of 45 feet (14 m).
The Indian Creek Bridge is a wrought iron bridge, built about 1880 to the east of Cedar Rapids, Iowa. The bridge crosses the Indian Creek, a tributary of the Cedar River, in Linn County. It was designed and built by the Wrought Iron Bridge Company (WIBCO) of Canton, Ohio as an eight-panel pin-connected through truss in an unusual double-intersection Pratt design.
Mill Creek Bridge is a historic structure located in a rural area north of Clarence, Iowa, United States.The Cedar Bluff Bridge over the Cedar River was the first all-iron span built in Cedar County in 1877. Four more iron spans were built later that year, as were several others over the years before this bridge was completed in 1889. It is the only one of those bridges left, and one of the oldest pony truss bridges in the state of Iowa. Citizens in Dayton Township petitioned the Cedar County Board of Supervisors in June 1888 for the bridge over Mill Creek. The supervisors contracted with Ward and Keepers of Clinton, Iowa to design and build the bridge. The 58-foot (1,800 cm) span was built on concrete-filled iron cylinder piers, with timber stringer approach spans. Over the years sub-structural alterations have been made to the bridge. It has subsequently been abandoned and its deck is in a deteriorating condition. The bridge was listed on the National Register of Historic Places in 1998. It was relocated to Whitetails Saloon in 2020
Gipple's Quarry Bridge is a historic structure located in a rural area southwest of Columbus Junction, Iowa, United States. The Louisa County Board of Supervisors approved the petition of T.J. Gipple in April 1893 to replace a timber pile bridge over Buffington Creek, which was near his stone quarry. They awarded a $1,174 contract to the Gillette-Herzog Manufacturing Company of Minneapolis to build two bridges. The second span was the County Line Bridge over Long Creek in Columbus Township. The bridge span is supported by stone masonry abutments and piers. The steel components of the bridge were rolled by Carnegie, Gillette-Herzog in Pittsburgh. The pony truss bridge is typical of those built in the same era in Iowa, however, like County Line Bridge it has an unusual lower chord configuration with end panels that slope downward from the bearing shoes to the center panels. It has subsequently been abandoned. The bridge was listed on the National Register of Historic Places in 1998.
Hawkeye Creek Bridge is a historic structure located in a rural area northeast of Mediapolis, Iowa, United States. The Des Moines County Board of Supervisors contracted with Clinton Bridge and Iron Works on September 23, 1909, to design and build this bridge. It is an 80-foot (24 m) span that carries traffic of a gravel road over Hawkeye Creek. The structure is a single rigid-connected Pratt through truss that is supported by concrete abutments. It basically remains in an unaltered condition. The bridge was listed on the National Register of Historic Places in 1998.
The Chambers Ford Bridge is located southeast of Chelsea, Iowa, United States. It spans the Iowa River for 345 feet (105 m). The Tama County Board of Supervisors approved a petition to construct a bridge at Chambers Ford under the condition that the local residents to secure the right-of-way for the bridge, build the trestle work and all approaches to the bridge. The Clinton Bridge and Iron Works of Clinton, Iowa built a single-span, pin-connected Pratt truss in 1890. By the turn of the 20th century the north end of the timber trestle approach that the local citizens constructed deteriorated beyond repair. The county contracted with the George King Bridge Company of Des Moines for $3,987 to build a new Pratt through truss. It was listed on the National Register of Historic Places in 1998. The bridge has been closed since 2007
The Minerva Creek Bridge is located in Liberty Township north of Clemons, Iowa, United States. It spans Minerva Creek for 68 feet (21 m). The Marshall County Board of Supervisors awarded a $14,090 contract to the N.M. Stark and Company of Des Moines to build six concrete bridges. They were all designed by W.W. Morehouse, the Marshall County Engineer. This single-span concrete Luten arch bridge was completed the same year for $2,550. It was the longest of the six bridges in the contract. The bridge was listed on the National Register of Historic Places in 1998.
The Beaver Creek Bridge was located northwest of Schleswig, Iowa, United States. It spanned Beaver Creek for 134 feet (41 m). Steel was in short supply during World War II as a part of the war effort. Many bridges built across the state were built in this era with timber, especially small-scale bridges. Heavy flooding washed out 27 bridges and culverts in Crawford County in May 1945. The county board of supervisors used emergency funds to build new bridges. They bought several steel superstructures from the Des Moines Steel Company to replace the wash-out spans. The bowstring arch-truss structures appear to have been designed by H. Gene McKeown, a civil engineer from Council Bluffs. This bridge was one of several similar structures built in the county. The bridge was listed on the National Register of Historic Places in 1998, and it was delisted in 2020.
The Storm Creek Bridge is located northeast of Carroll, Iowa, United States. The 64-foot (20 m) span carries traffic on Phoenix Avenue over Storm Creek. This bridge was one of 15 similar spans that Carroll County had built in 1913. The county board of supervisors contracted with the Standard Bridge Company of Omaha to build the Warren pony truss structures that were designed by the Iowa State Highway Commission (ISHC). They were supported by a timber substructure. The bridges became the prototype of what would become the ISHC's standard design. Standard Bridge was paid $29,174 to build all the bridges, which included the costs for this bridge at $2,026. It was listed on the National Register of Historic Places in 1998.
The Storm Creek Bridge 2 is located east of Carroll, Iowa, United States. The 57-foot (17 m) span carries traffic on 190th Street over Storm Creek. This bridge was one of 15 similar spans that Carroll County had built in 1913. The county board of supervisors contracted with the Standard Bridge Company of Omaha to build the Warren pony truss structures that were designed by the Iowa State Highway Commission (ISHC). They were supported by a timber substructure. The bridges became the prototype of what would become the ISHC's standard design. Standard Bridge was paid $29,174 to build all the bridges, which included the costs for this bridge at $1,987. It was listed on the National Register of Historic Places in 1998.
The Coal Creek Bridge was located southeast of Carlisle, Iowa, United States. The 88-foot (27 m) span carried traffic on Fillmore Street over Coal Creek. The Warren County Board of Supervisors contracted with the Seevers Manufacturing Company of Oskaloosa, Iowa to build this bridge. The Pratt pony truss was completed in 1889. It was the only example of this type of bridge built by the company left in Iowa. It was listed on the National Register of Historic Places in 1998, The bridge was taken down in 2008.
The Shellsburg Bridge is a historic structure located in Shellsburg, Iowa, United States. It spans Bear Creek for 64 feet (20 m). In April 1915 the Benton County Board of Supervisors contracted with Alfred Vinall to build the new bridge near Shellsburg's downtown area. He used a special design by the Iowa State Highway Commission (ISHC), and completed the project in late 1915 for $6,081.06. The ISHC designed plain bridges for its rural spans, but because this span is in town it features decorative elements: bichrome concrete detailing, molded concrete balustrades, and incised spandrel panels. The bridge was listed on the National Register of Historic Places in 1998.
The Morgan Bridge is a historic structure, originally located southeast of Old Peru, Iowa, United States. It spanned a branch of Clanton Creek for 60 feet (18 m). The wrought iron or steel Pratt pony truss was manufactured by the King Iron Bridge & Manufacturing Company of Cleveland. Benton Jones of Winterset, Iowa assembled it for $376.39. The approaches are timber stringer spans, and it is supported by timber pile bents. The bridge has not been operational for years. It was listed on the National Register of Historic Places in 1998. The span originally served a remote crossing, but has subsequently been relocated and is now owned by the Madison County Historical Society.
The Miller Bridge is a historic structure, originally located northeast of Winterset, Iowa, United States. It spanned an unnamed stream for 128 feet (39 m). The Madison County Board of Supervisors contracted with King and Twiss of Des Moines to supply the wrought iron Pratt pony truss. Local contractors H.P. Jones and G.K. Foster built the iron tube substructure and erected the truss manufactured by the King Iron Bridge & Manufacturing Company of Cleveland. The total cost of the project was $2,197.55. The bridge was listed on the National Register of Historic Places in 1998. The span was moved in 2008.
The Wabash Railroad Bridge is a historic structure located south of Pella, Iowa, United States. It spans the Des Moines River for 561 feet (171 m). The Des Moines and St. Louis Railroad (D&S) was built through the central part of Marion County in 1882. This bridge was probably built at that time. It is a three span, wrought iron, Pratt through truss manufactured by the Carnegie Steel Company. The Wabash, St. Louis and Pacific Railroad, the Wabash Railroad, eventually acquired the D&S and this bridge. It remained in use as a railroad bridge until about 1946 when the county acquired the bridge and the right-of-way for a county road. They rehabilitated it in 1951, replacing part of the substructure. The bridge was listed on the National Register of Historic Places in 1998.
The Little Sioux River Bridge is a historic structure located northwest of Spencer, Iowa, United States. It spans the Little Sioux River for 180 feet (55 m). The bridge was originally located at Main Street, south of downtown Spencer over the same river. Two previous bridges had been located at the original location beginning in 1875, with a replacement in 1889. Clay County contracted with Clinton Bridge and Iron Works from Clinton, Iowa in 1900 to build this Pennsylvania through truss span. Completed the following year, it is the rare example of this type of bridge built in Iowa. A concrete arch span replaced this bridge in 1915, and it was moved to its current location the same year. The concrete abutments were built by Thor Construction Company from Cedar Falls, Iowa. The bridge was listed on the National Register of Historic Places in 1998.
Lower Road Bridge is a historic structure located northwest of Anamosa, Iowa, United States. It spans Buffalo Creek for 160 feet (49 m). The King Iron Bridge and Manufacturing Co. of Cleveland erected a bowstring through arch truss and a shorter pony arch in 1878 for what was historically called Lower Road. The bridge's superstructure consists of a large stone masonry pier and abutments. It was listed on the National Register of Historic Places in 1998. The county abandoned the bridge and it is now privately owned.
The Dunleith and Dubuque Bridge, also known as the White Water Creek Bridge and the Bergfeld Recreation Area Bridge, is a historic structure located in Dubuque, Iowa, United States. This span was part of a seven-span approach to one of the first bridges constructed over the Mississippi River. It was part of a railroad bridge that connected Dubuque with Dunleith, Illinois, now known as East Dubuque. The bridge was fabricated by the Keystone Bridge Company of Pittsburgh, Pennsylvania. Andrew Carnegie himself traveled to Dubuque to advocate for his company to build the bridge. The bridge was erected by Reynolds, Saulpaugh and Company of Rock Island, Illinois. The approach, of which this iron truss was a part, was completed in 1872. It was used by the Illinois Central and other railroads.
The Fish Creek Bridge is a historic structure that was originally located east of Salem, Iowa, United States. The span carried Hickory Road over Fish Creek for 50 feet (15 m). It is a small-scale, wrought-iron bridge that the Henry County Board of Supervisors bought from the George E. King Bridge Company of Des Moines in 1893 for $410.80. It was believed to have been fabricated by their parent company, King Iron Bridge Company of Cleveland, and assembled by local laborers. Its historical significance derived from its being an uncommon variant of the Pratt truss. It was listed on the National Register of Historic Places in 1998. Subsequently, the bridge has been replaced at its original location, and the historic structure was moved to Oakland Mills Park.
